Oval drain cover riser



FIG. 1 is a top perspective view of the oval drain cover riser according to the new design.

FIG. 2 is a top view of the thereof.

FIG. 3 is a side view thereof; and,

FIG. 4 is an end view thereof.

The broken lines are shown for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for an oval drain cover riser, as shown and described. 